Stretch hull and stretch watercraft

Abstract

A stretch hull design comprises of a stern float and a bow float joined longitudinally to each other at some distance apart by a beam making an otherwise short floats a long correspondingly stable hull. Having a little mass toward the middle in the form of a beam, the hull is relatively cheaper to build per lineal unit of length and less subjected to the effect of the waves contributing to a better ride quality and reduces structural stress. It provides a large potential space limited only by the displacement of the floats and the length of the beam. The beam also acts as ballast, keel or centerboard preventing the craft from capsizing and facilitates the mounting of parts in enhancing the performance of the craft.

What I claim as my invention and desire to secure by Letters Patent, is:  
     
         1 . A watercraft's hull design consisting basically of a stern float and a bow float joined longitudinally to each other preferably at some distance apart by at least one elongated and laterally narrow structure preferably in the form of a beam or beam assembly.  
     
     
         2 . A watercraft's hull design of  claim 1 , wherein the said beam or beam assembly is oriented closed to the surface or on the surface or beneath the surface where it find most effective.  
     
     
         3 . A watercraft's hull design of  claim 1 , wherein the said beam or beam assembly is oriented beneath the surface connected to the said stem and bow floats and also acting as ballast and/or keel and/or centerboard.  
     
     
         4 . A watercraft's hull design of  claim 1 , wherein the said beam or beam assembly is in the form of at least two length sections joined longitudinally by an intermediate means into a longer detachably sectional beam assembly.  
     
     
         5 . A watercraft's hull design of  claim 1 , wherein the said beam or beam assembly is provided with substructure of any form oriented toward the bottom and in effect acting as ballast.  
     
     
         6 . A watercraft's hull design of  claim 1 , wherein the said beam or beam assembly is provided with an upright structure of any form and in effect acting as mast.  
     
     
         7 . A watercraft's hull design of  claim 1 , wherein the said stem and bow floats each provided with appropriate fins designed to lift the hull while in forward motion.  
     
     
         8 . A watercraft's hull design of  claim 1 , wherein either or both the said stern and bow floats comprises of plurality of pontoons connected by an appropriate means.  
     
     
         9 . A watercraft's hull design of  claim 1 , wherein either or both the said stern and bow floats are in the form of inflatable.  
     
     
         10 . A stretch hull design consisting basically of a stem float and a bow float joined longitudinally to each other preferably at some distance apart by a beam and/or a platform.  
     
     
         11 . A beam assembly as shown particularly in FIGS. 12 and 13.